591131241 has 6 divisors (see below), whose sum is σ = 853856250. Its totient is φ = 394087488.

The previous prime is 591131239. The next prime is 591131243. The reversal of 591131241 is 142131195.

It is a happy number.

591131241 is a `hidden beast` number, since 591 + 1 + 31 + 2 + 41 = 666.

It is an interprime number because it is at equal distance from previous prime (591131239) and next prime (591131243).

It can be written as a sum of positive squares in only one way, i.e., 415303641 + 175827600 = 20379^2 + 13260^2 .

It is not a de Polignac number, because 591131241 - 2¹ = 591131239 is a prime.

It is a super-2 number, since 2×591131241² = 698872288172400162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (591131243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32840616 + ... + 32840633.

It is an arithmetic number, because the mean of its divisors is an integer number (142309375).

Almost surely, 2^591131241 is an apocalyptic number.

It is an amenable number.

591131241 is a deficient number, since it is larger than the sum of its proper divisors (262725009).

591131241 is a wasteful number, since it uses less digits than its factorization.

591131241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65681255 (or 65681252 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 591131241 is about 24313.1906791355. The cubic root of 591131241 is about 839.2563529023.

The spelling of 591131241 in words is "five hundred ninety-one million, one hundred thirty-one thousand, two hundred forty-one".